Rake-operating device for wool-washing machines.



F. W. SWAIN. RAKE OPERATLNG DEVICE FOR WOOL WASHING MACHINES.

N na Lm Z 2% v fi \I ll Ag M "mm m E PL fiH IU. U U W E w; m 6 F h %N NN fll/ APPLICATION FILED MAY 12, 915.

COLUMBIA PLANOORAPH CD..\VASHXNGTON, D c.

E. w. SWAIN. I RAKE OPERATING DEVICE FOR WOOL WASHING MACHINES;

APPLICATION FILED MAY 12, 1915.

Patented Dec. 21, 1915.

van '00 2 SHEETSSHEET Z.

COLUMBIA PLANOGRAPH co.,WAs1-11NGTON, D. c

UNITED STATES FRED W. SWAIN, OF NORTH CHELMSFOR-D, MASSACHUSETTS, ASSIGNOR T C. G.

SARGENTS SONS CORPORATION, ,OF GRANITEVILLE, MASSACHUSETTS, A CORPO- RATION OF MASSACHUSETTS.

EAEE-OPE ATIN DEVICE FOR WOOL-WASHING MACHINES.

To all whom it may concern to provide for this purpose mechanism which shall be simpler than the ordinary rake operating mechanisms now in use, which can be adjusted to vary the kind of motion of the rake soas to make it circular or elliptical as maybe desired, and in which this controlling mechanism can be located entirely above the top ofthe bowl; and also to provide an improved device for introducing the liquor into the rear end of, the bowl and varying its rate of entrance.

Reference is to be had to the accompanying drawings, in which Figure l is a side elevation of a wool washing machine constructed in accordance with this invention; Fig. 2 is a similar view with the operating and similar parts in sectional view on ajcentral longitudinal plane, and with the parts in a different position; Fig. 3 is a sectional view on the line 33 of. Fig. 1; Fig. 4 is a sectional view of the eccentric on enlarged scale showing it in another position; and Fig. 5 an inside end view of the means by which the liquor is introduced into the bowL' The invention is shown in a form in which it is applied to an ordinary rake but it'is understood that it can also be applied to rakes having claw teeth and other types of wool washing bowls and rakes.

In the form shown, the bowl is provided with the usual screen 11 which extends upwardly at the rear at the point 12, the rear portion being spaced from the rear end of the bowl. The washing liquor is introduced into the bowl at its. end through a pipe 13 which discharges into a chamber 14 located on and constitutinga part of the end of the bowl. The passage of theliquor from this chamber into the bowl is regulated by a plate 15 which is provided with a row of perforations 16 near the top. This plate is held in position by bolts and can be ad- Specification of Letters Patent.

Patented Dec. 21, 1915.

Application filed May 12, 1915. Serial No. 27,669.

justed up and down to a certain extent. It will be understood that asthe plate is adusted upwardly a portion of each perforation 16 is cut off by the top wall of the chamber la and thus the amount of liquor entering the bowl is regulated. It will be seen further that these perforations are about on the level, or a little above the top, of the end 12 of the screen. This permits the liquor to be discharged inwardly over the top of this projection and lets the liquor from the bottom pass upwardly behind it and over its top as indicated by the arrows in Fig. 1.

A rake 20 of ordinary construction is shown supported by uprights 21 on the top of the bowl. These uprights as usual are provided 'with shafts 22 on which are weighted arms 23 from which depend links 24 to which the rake is pivotally connected. These arms 23 are connected in the usual way by a longitudinal rod 25 so that a. parali lel motion is provided for the purpose of raising and lowering the rear end of the rake in accordance with the motion of the front end.

For the purpose of moving the rake longitudinally the following mechanism is provided: Power is transmitted through a wheel 26 to a shaft 27 which is supported by the. forward uprights and extends across the machine. On this shaft is an eccentric 28 provided with a strap 29. On this strap is a surface 30 for supporting a roller 31. It will be noted that this surface is provided with two depressions 32 at its sides and when the rake isin either extreme posltion, the roller 31 will rest in one of these depressions.

thus allowing the rake to dip slightly at.

each extreme of its motion. This roller 31 is carried on a shaft 33 which is provided with a pair of yokes 34. These extend downwardly and are pivoted by means of rods 35 to the forward end of the rake so that the motion of the eccentric not only raises and lowers the front end of the rake, but also moves it longitudinally. In other words, a circular motion is normally transmitted to the forward end of the rake.

The eccentric strap is connected by a rod 36 with the depending rods 24 at the rear of the rake. This connection is made through a transverse rod 37 having a pair of connections 38 thereon adapted to be secured to the links 24: by set screws 39 pressed in the claims.

or the like. Obviously the set screws can be loosened and the connections 38 raised or lowered along the linksQ l. This turns 1.

the rod 36 on the eccentric as a center and permits of variation of the motion of the rear end of the'rake and consequently of the entire rake. If the rod is connected as indicated in Fig. 2 the motion is an elliptical one but if it is lowered the to-and-fro motion of the rake at the rear will be decreased and thus a circular motion can be secured, because the rise and fall is'not varied by this adjustment. It will be seen, therefore, that this arrangement is simple and compact, can be arranged entirely above the bowl 1f deslred, can be ad usted in an extremely simple way to vary the motion, and is inexpensive.

Although I have illustrated and described only a single embodiment ofthe invention, I j am aware ofthe fact that modifications can be made therein by any person skilled inthe art and that it can be applied to other types of wool washing machines without departs ing from the scope of the invention as ex- Therefore, I do notwish to be limited'in these respects, but What I do; claim ,is:. j 1. In a wool washing 1nachine,'the com, bination with a bowl and a rake therefor,

of an operating mechanism for the rake comprislng an eccentric, a strap for the eccentric, a yoke supported by said eccentric:

and depending therefrom to support that end of the rake, a rod fixedto said strap and extending toward the other end of the rake, and means for connecting said rod with said other end of the rake to transmit the to-and-fro-motion to the rake. I

2. In a wool washing machine, the combination with a bowl and a rake therefor,

of an operating mechanism for the rake comprising an eccentric, a strap for the eccentric near one end of the rake, a rod rigidly connected with said strap and extending toward the other end of the rake, and vertically adjustable means for connecting the end of said rod with the-other end of the rake to transmit the to-andfro motion to the rake, and adjust thestrap angularly about the eccentric.

3. In a wool'washing machine, the combination w th a bowl and a rake," of a trans- Copies of this patent may be obtainedfor comprising an-eccentric, a strap on the eccentric, means directly pivoted to the rake I andoperated by the strap for raising and loweringthe rake uniformly at both ends, comprising.,parallel 'links at the ends of the rake,.a rod rigidly connected with said strap and extending toward the :other end of the rake,- and means for connectingthe end of said rod with one of said linkslat the other end of the rake, said connectingme'a-ns' being adjustable upand down throughout the lengthof the link, whereby the'motion transmitted to the said other end of the rake can be varied. g j p i j 5. In a wool washing machine, the combi nation witha bowlanda rake, of a shaft located above the'rake, an eccentr c thereon, I an eccentric strap, circumferentially adjust able means for preventing the eccentrlc strap from turnlng w th the eccentric, a roll mounted onthe top of theeccentric strapf and a yoke connected with, said "roll and-sup porting the end of the rake, said'eccentric strap having a cam surface. on the top there of f having different portions on which the roll can bear.

6.: ,In' a.wool wasl1ing machine, the combination withabo'wl, a screen, and a rake, of an inlet pipe-for the washing liq'uor'located at the rear endo'f the bowl, a chamber beyond the rear end of the bowl into which: aid pipe d sc arges, P a lo ed between the chamber and the interior of the bowl havin .a plurality f of perforations therethroug and adjustable up and down to control the rate of discharge into'the bowl, said [screen extending upwardlyand .rearwardly substantially to the level of said O eningS.

In testimony whereof I have hereunto set my hand. r

v SWAIN.

'five 'eents each,"by"addressing the Commissioner ;of Patents, was-hingtonm. Q3 

